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| Japanese Explosive Ordnance – Bombs, Bomb Fuzes, Land Mines,
Grenades, Firing Devices and Sabotage Devices |
| Chapter 1 – Section 2 |
| Japanese Navy Bombs |
| Type 99 No. 6 Land Bomb |
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Overall length: 42 1/4 inches. |
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Length of body: 25 1/2 inches. |
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Diameter of body: 8 7/8 inches. |
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Thickness of wall: 1/4 inch. |
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Material of wall: Steel. |
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Type of suspension: Horizontal. |
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Suspension lug: Normal Navy suspension lug. |
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Color and markings: Gray over all with a green nose band and green tail struts. There are two thin red lines 180° apart along the length of the bomb. New type color markings will be found. |
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Length of tail: 16 7/8 inches. |
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Width of tail: 12 1/4 inches. |
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Width of tail fins: 5 5/8 inches. |
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Dimensions of tail struts: Length, 9 inches; width, 1 inch; thickness, 1/16 inch. |
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Material of tail: Steel. |
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Type of filling: Picric acid of type 98 explosive. |
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Weight of filling: 70 pounds. |
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Total weight of bomb: 138 pounds. |
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Charge/weight ratio: 50 percent. |
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Construction of body: The body is constructed of 1 piece of machined forged steel. It is threaded in the nose to receive a fuze. The after end of the body is threaded inter-nally to accommodate a male base plate. A tail cone is secured to the base plate by a single row of 20 screws. There is no explosive in the tail cone. |
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Construction of tail: Four fins are welded to the tail cone and braced by a single set of box-type struts. |
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Figure 39 - Type 99 No. 6 Ordinary Bomb. |
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